Oven



July 17, 1923.

J. H. BEEBY OVEN Filed Dec. 28 l92l BIN INVENTOR Jam/E5535 ATTORNEYPatented July 17, 1923.

UNITED STATES memes PATET orFicE.

Joann. BEEBY, or orrawa, onranro; CANADA.

Application filed December 28, 1921. Serial No. 525,533.

To allwhom it may concern: I

Be it known that 1, JOHN H. Bunny, a citizen of the United States,residin at Ottawa, in the county of Carleton and lrovince of Ontario,Dominion of Canada, have invented' certain new and useful Improvementsin Ovens, of which the following is a specification.

The present invention relates to the provision of a heat retaining ovenadapted for use in conjunction with'a coal, wood or gas burning stove,and it is within the province of the disclosure to provide an oveninwhich heat is generated through the medium of the combustion of gas toproduce the required temperature which will be maintained for aconsiderable time after the cessation of the burning of the combustibleelements.

A further object of my invention is to provide a gas burneradapted forsuccessful operation in conjunction with a heat retaining oven.

A further object is to provide agasburner embodying a gas valve andprimary and secondary air valves, the operation of which gas valve willcontrol theoperation of the said primary and'secondary airvalvessynchronically.

Another object ofmy invention is to provide a gas burner adapted forsuccessful operation in conjunction with a heat retaining oven, whichoven is provided with a damper controlled opening for the egress ofspent gases, the said damper being controlled in synchronism with thegaa'primary and secondary air valves of the said gas burner.

Another object of my invention is to provide a gas burner constituting agas valve having air inlets disposed in proximity thereto, which directthe air past the inner end of the gas valve at acute angles in rela tionto the direction ofthe egress of the gastherefrom to form confluence ofthe combustive elements. I

A further object of my invention is to pr0- vide a gas burner having aspreader adjustably positioned at the discharge end thereof, whichspreader-acts as a protective member and provides a controlling meansfor the egress of the combustible elements.

Among other aims and objectsof my invention may be cited the provisionof a heat retaining oven and heat generating means, with aview tocompactness, economical construction'and operation, durability andsymmetry. 1

OVEN.

These and other objects I accomplish by means of such structure andrelative arrangement of component parts, as will readily appear after aperusal of the following description, the descriptivematter beingsupplemented by the accompanying schematic illustrations, wherein: a

The drawing is a vertical medial section through an oven constructed inaccordance with my present invention, parts remaining in elevation andsundry elements being illustrated diagrammatically.

The base, top and three walls of the oven are preferably constructed ofshcetmetal encasing insulation and dead air spaces, thus forming a heatretaining chamber conventionally termed an oven, access to which may behad throughan insulated door. The base of the oven constitutes the castsheet metal plate 6 which is provided with an ap proximately central"opening 7 The plate 6 is substantially reinforced by the plate 8toprevent warping and buckling of the same,

plate 12, intermediate which is positioned insulation 13 extending overthe base of the oven thus constructed and having a dead air space 14formed therein. The bottom of the oven will be made stable bydualbrackets disposed on each side of the stove, a portion of one beingshown anddesignatecl by the numeral 15. The bZlCklOf the ovenconstitutes the inner sheet metal wall 16 and the outer sheet metal wall17 having medially disposed and extending vertically intermediate thesheet metal walls, the flue 1S having the insulation as designated bythe numerals 19 and 20 at both sides of the same. The back wall of thestove laterally of the flue 18 is congruent to that of the bottom of thestove. i

The top of the stove constitutes the upper and lower sheet metal'plates21and22 having insulation disposed intermediate the same as designatedby the numerals 23 and 24. and being provided with. the dead air space25. The sides of the stove, one of which is designated by the numeral26, are

constructed in a similar manner to the top of the stove.

To form a symmetrical construction, the oven front is finished withacast. periphcry 27 having an inwardly extending portion 28 to which thesheet metal plate 21 1S riveted and having integral therewith theshoulder 29 forming a means whereby a stove pipe may be fastened overthe fine 18. The face plate of the stove is designated by the numeral30. This face plate is insulated on both sides of the chamber 9 in asuitable manner.

The door of "the oven constitutes the outer plate 31 having the offsetflange 32. In the outer plate 31, a suitable opening '33 is formed andhas disposed at the rear thereof the plate 34 which may be ornamentallyconstructed, if desired. The numeral designates the inner plate of thedoor provided with the flange 36 which is disposed at an acute angle inrelation to the vertical face of the plate 35. This angularly disposedflange 36 is contiguous with the inner edge 37 of the face plate 30,thus providing a wedge-like construction, affording a means ofpreventing undesired. passage ofheat. Disposed intermediate the plates31 and 35 is the dead air space 38 encased by the insulated walls 39 and40 which are connected at the outer edges thereof as dia grammaticallyillustrated.

j From the foregoing description, it will be readily discerned that Ihave provided an oven which will retain the heat for a considerablelength of time. This oven is heated by gas which is mixed with air andthe combustible 7 elements so formed pass from the burner illustrated.The oven is provided with the gas inlet pipe 41 which extends along thefront of the oven. Threade'dly engaged with this gas inlet pipe 41 isthe gas inlet pipe 42 having'a valve disposed intermediate its terminalswhich provides a controllable communicative means for the supply of gasto the burner. The gas'valve alluded to constitutes the vertical stem 43which has mounted on the up per terminal thereof the handle 44. Thevertical stem 43 is tapered toward its lower terminal and seats in theenlarged portion 45 configurated on the valve pipe 42 intermediate itsterminals. 112 is an air chamber over the burner chamber, as shown.

'Air'enters into the burner chamber 9 and also the lower extremity ofthe burner. This creates a draught for the passage of the combustibleelements through the open-- ing'7 formed in the base of the oven.Simultaneously the air in the chamber 112 disposed over the burnerchamber 9 passes out of the opening in the oven base, forming confluencewith the combustible elements. The combustible elements passing'throughthe said opening 7 impinge against the baflie plate 98 supported by thediametrically opposed tray racks, one of which is "designated by thenumeral 99. 'Disposed above the tray racks 99 arethe diametricallyopposed tray racks 100 similar in construction to the tray racks 99. Thesaid tray racksare substantially mounted on the sides of the oven andhave configurated in staggered formation on the inner faces thereof, aplurality of lugs. The numerals 102 designate trays of conventionalconstruction which are held in position by the tray racks 99and trayrack, although I have shown the same as a separate member. g H v Thenumeral 103 designates a casing adapted for enclosing the lower portionof the burner chamber 9. The said casing is held in position by aplurality .of pivoted buttons, oneof which is designated by the numeral104. Through this mediunnaccess to the burner chamber: is facilitated,as it will be readily understoodthat upon turning thelouttons 104, thecasing 103 may be removed. -l

The numeral 105 indicates an opening formed in the rear wall ofltheoven, thus providing a passage from the oven to the flue 18. Thispassage is controlled by the hingedly mounted damper 106 having attachedthereto, the leverarm 107 The'numeral 108 designates a connection rodpivotally v connected to the lower extremity of the lever arm 107 andwhich passesthrough the base of, the ovenand extendsdownwardly as at109, then at right angles thereto inhorizontal alignmentwith theucasing103, as designated by the numeral 110. The numeral 111 designates a turnbuckle or sleeve nut whichis disposed intermediate the sections 109 and110 oftheconnectionrod. The inner extremity of the connection 110 isconnected to the-valve face plate. Il'pon turning'of the vertical stem43 of the gas valve, the gas and air valves areactuated as hereinbeforedescribed. The-actuation of the air valves operates the damper 106synchronically, as it will be discerned that through the medium of. theconnection rod hereinbefore described, connection; to the said membersis had. Through the medium be regulated independently of the gas andlimiting myself to the specific detailsofcon- 7 struction andarrangement as herein .de-

scribed and illustrated, as it is manifest that variations andmodifications may be resorted to in the features of construction andarrangement, in the adaptation of the de vice to various conditions ofuse, Without departing from the spirit and scope of the invention. Itherefore reserve the right to all such variations and modifications asproperly fall Within the scope of the invention as defined by theappended claims.

What I claim as new is:

1. A heat retaining oven constituting an insulated base having a burnerchamber, an insulated top, insulated Walls, an insulated door, a gasburner for heating the said oven and an air chamber over the burnerchamber.

2. A heat retaining oven constituting an insulated base having a burnerchamber, a dead air space in the said base, an insulated top, a dead airspace in the said top, insulated Walls, dead air spaces in the saidWalls, an insulated door, a dead air space in the said door, a gasburner for heating the said oven and an air chamber over the burnerchamber.

3. A heat retaining oven constituting an insulated base having a burnerchamber, an insulated top, insulated walls, an insulated door, a flue atthe rear of the said oven, an opening affording communication from thesaid oven to the said flue, a closure means for the said opening, a gasburner for the said oven, an air chamber over the burner chamber andmeans for operating the said closure means synchronically with the saidgas burner.

4:. A heat retaining oven constituting an insulated base having a burnerchamber, an insulated top, insulated Walls, an insulated door, a gasburner disposed beneath the said base, an air chamber over the burnerchamber, an opening in the said base for the entrance of combustibleelements from the said gas burner and a baflie plate for difi'using thesaid combustive elements.

5. A heat retaining oven constituting an insulated base having a burnerchamber, an insulated top, insulated Walls, an insulated door, a gasburner disposed beneath the said base, an air chamber above said burnerchamber, an opening in the said base for the entrance of combustibleelements from the said gas burner and a baffle plate for difi'using thesaid combustive elements and an opening for the egression of the spentgas.

6. A heat retaining oven constituting an insulated base having a burnerchamber, an insulated top, insulated Walls, an insulated door, means forreinforcing the said base, a gas burner for the said oven and an airchamber over the burner chamber.

In testimony whereof, I afiix my signature in the presence of tWoWitnesses.

JOHN H. BEEBY.

Witnesses:

M. MCMILLAN, R. SLONEMSKY.

